<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="static/css/bootstrap.min.css">
    <style>
        img {
            width: 100%;
        }
    </style>
</head>
<body>
<div class="container">
    <hr>
    <div class="row">
        <div class="col-lg-3">
            <ul class="nav nav-stacked nav-pills">
                <li class="active"><a href="#">linux</a></li>
                <li><a href="#">network</a></li>
                <li><a href="#">python</a></li>
                <li><a href="#">html</a></li>
                <li><a href="#">css</a></li>
                <li><a href="#">javascript</a></li>
            </ul>
        </div>
        <div class="col-lg-9">
            Hello World!
        </div>
    </div>
    <div class="row">
        <div class="col-lg-12">
<!--            <ul class="nav nav-tabs">-->
            <ul class="nav nav-pills">
                <li class="active"><a href="#">linux</a></li>
                <li><a href="#">network</a></li>
                <li><a href="#">python</a></li>
                <li><a href="#">html</a></li>
                <li><a href="#">css</a></li>
                <li><a href="#">javascript</a></li>
            </ul>
        </div>
    </div>
    <div class="row" style="margin-top: 5px">
        <div class="col-lg-3 col-md-4 col-sm-6">
            <img src="http://pic1.win4000.com/wallpaper/e/587452594a505.jpg">
        </div>
        <div class="col-lg-3 col-md-4 col-sm-6">
            <img src="http://pic1.win4000.com/wallpaper/e/587452594a505.jpg">
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        <div class="col-lg-3 col-md-4 col-sm-6">
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        <div class="col-lg-3 col-md-4 col-sm-6">
            <img src="http://pic1.win4000.com/wallpaper/e/587452594a505.jpg">
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        <div class="col-lg-3 col-md-4 col-sm-6">
            <img src="http://pic1.win4000.com/wallpaper/e/587452594a505.jpg">
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        <div class="col-lg-3 col-md-4 col-sm-6">
            <img src="http://pic1.win4000.com/wallpaper/e/587452594a505.jpg">
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        <div class="col-lg-3 col-md-4 col-sm-6">
            <img src="http://pic1.win4000.com/wallpaper/e/587452594a505.jpg">
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        <div class="col-lg-3 col-md-4 col-sm-6">
            <img src="http://pic1.win4000.com/wallpaper/e/587452594a505.jpg">
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</div>
</body>
</html>